(0 18 15)(1 19 3)(2 10 8)(4 13 7)(5 16 6)(9 20 11)(12 17 14)
ALLOWS (11/8)-SEQUENCE
1: (9 10 11)

(0 18 15)(1 19 3)(2 10 20 11 8)(4 13 7)(5 16 6)(9)(12 17 14)
2: (2 10 20)

(0 18 15)(1 19 3)(2 11 8)(4 13 7)(5 16 6)(9)(10)(12 17 14)(20)
3: (1 19 3)

(0 18 15)(1)(2 11 8)(3)(4 13 7)(5 16 6)(9)(10)(12 17 14)(19)(20)
4: (2 11 8)

(0 18 15)(1)(2)(3)(4 13 7)(5 16 6)(8)(9)(10)(11)(12 17 14)(19)(20)